STUDY OF THE RHEOLOGICAL PROPERTIES OF THE SUSPENSION FORMED DURING THE PRODUCTION OF CAUSTIC SODA BY THE LIME METHOD

Authors

Aktam Ulashovich Erkaev, Professor Department Chemical technologies of inorganic substances Tashkent Chemical Technology Institute, Tashkent city, Republic of Uzbekistan, E-mail: aerkaev_1960@mail.ruFollow
Dildora Tursunova, PhD student Department Chemical technologies of inorganic substances Tashkent Chemical Technology Institute, Tashkent city, Republic of Uzbekistan.Follow

Abstract

The process of obtaining sodium hydroxide - caustic soda by conversion of soda ash with lime milk in the presence of natural mirabilite - has been investigated. The influence of temperature, Na₂CO₃: Na₂SO₄ ratio, concentration of lime milk and duration of the conversion process on this process was studied by identifying their optimal values. The study of the rheological properties of the reaction pulp showed that it is mobile and well filtered, which makes it possible to obtain rapidly settling large crystals of Na₂CO₃·2Na₂SO₄, Na₂CO₃, Na₂SO₄ and a concentrated sodium hydroxide solution during evaporation. After filtration of the solid-phase suspension, burkeite is simultaneously obtained. The mineralogical composition of the obtained product was established by chemical, X-ray phase and microscopic analyzes.

First Page

20

Last Page

28

References

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Recommended Citation

Erkaev, Aktam Ulashovich and Tursunova, Dildora (2021) "STUDY OF THE RHEOLOGICAL PROPERTIES OF THE SUSPENSION FORMED DURING THE PRODUCTION OF CAUSTIC SODA BY THE LIME METHOD," Chemical Technology, Control and Management: Vol. 2021: Iss. 1, Article 3.
DOI: https://doi.org/10.34920/2021.1.20-28